Gateshead drew 12-12 with London Skolars during the first 40 minutes of the New River Stadium clash, but eventually lost 52-24.
Neighbour said: “We were the most powerful side in the first half.”
Tony Benson’s men are set to travel without Lucas Onyango, who looks to have suffered a season-ending knee injury.
Benson said: “Gateshead are not the Gateshead of old. They’re much stronger than they have been and we know exactly the challenge we’ll face on Sunday.”